package mutilthread;

import java.util.concurrent.atomic.AtomicInteger;

/**
 * Created with IntelliJ IDEA.
 * Description: 利用 CAS 实现 “原子类”
 * User: Li_yizYa
 * Date: 2025—04—07
 * Time: 16:36
 */
public class Demo23 {
    // private static int count = 0;
    private static AtomicInteger count = new AtomicInteger(0);

    public static void main(String[] args) throws InterruptedException {
        Thread t1 = new Thread(() -> {
            for (int i = 0; i < 50000; i++) {
                count.getAndIncrement(); // count++
//                count.incrementAndGet(); // ++count
//                count.getAndDecrement(); // count--
//                count.decrementAndGet(); // --count
//                count.getAndAdd(10); // count += 10
            }
        });

        Thread t2 = new Thread(() -> {
            for (int i = 0; i < 50000; i++) {
                count.getAndIncrement();
            }
        });

        t1.start();
        t2.start();
        t1.join();
        t2.join();

        // 通过 count.get() 拿到原子类内部持有的真实数据
        System.out.println("count = " + count.get());
    }
}
